Vicky's Secret Hottie Struts Through Chicago Today

Brazilian model Alessandra Ambrosio makes in-store appearance

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Victoria's Secret Angel Alessandra Ambrosio walks the runaway wearing the 2008 Fantasy Bra designed by Martin Katz during the 2008 Victoria's Secret Fashion Show at the Fontainebleau on November 15, 2008 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)

There's models and then there's supermodels, and while most of us -- guys particularly -- generally enjoy the feeling of hanging out with your run-of-the-mill cat-walker you might encounter, say, at an Akira fashion show, there is a higher level of an unattainable female to aspire to.

Here's your chance to rub bony elbows with one of the most popular VS supermodels when Alessandra Ambrosio struts into town on Tuesday.